PROTO LABS INC

Ticker: PRLB CUSIP: 743713109 Class: EQTY

PRIVATE TRUST CO NA's Holding History (CIK: 0001277557)

Note: Option positions (PUT/CALL) are excluded.

Q3 2014
Shares 59 Value ($000) $4 Avg Close $78.24 Range $68.88 - $94.23
Q2 2014
Shares 50 Value ($000) $4 Avg Close $67.73 Range $58.06 - $83.06
Q1 2014
Shares 40 Value ($000) $3 Avg Close $74.38 Range $62.09 - $84.00
Q4 2013
Shares 40 Value ($000) $3 Avg Close $77.51 Range $65.52 - $89.97
Q3 2013
Shares 40 Value ($000) $3 Avg Close $69.23 Range $61.46 - $80.66
Q2 2013
Shares 40 Value ($000) $3 Avg Close $53.72 Range $43.62 - $67.40
Q1 2013
Shares 40 Value ($000) $3 Avg Close $44.26 Range $37.23 - $53.91